[sqlalchemy] Re: sqlalchemy with turbogears and assign_mapper: group_by
On 9/10/07, Roger Demetrescu [EMAIL PROTECTED] wrote: On 9/8/07, Lukasz Szybalski [EMAIL PROTECTED] wrote: On 9/7/07, Paul Johnston [EMAIL PROTECTED] wrote: Hi, And if I wanted to select a year and group by year? select User.Year from User group by User.Year db.execute(select([User.Year]) ??? Have a look at http://www.sqlalchemy.org/docs/04/sqlexpression.html Ok. Based on documentation. I do: import sqlalchemy s2=sqlalchemy.select([User.c.YEAR]) s3=s2.execute() Got all year fields. 1995,1995,1995,1996,1996.. Now I want to group so I get just one. s2=sqlalchemy.select([User.c.YEAR]).group_by(User.c.YEAR) But when I execute, I get: s3=s2.execute() Traceback (most recent call last): File console, line 1, in ? AttributeError: 'NoneType' object has no attribute 'execute' In docs they use conn.execute(s2) Is this a different execute that is being called from somewhere else? I didn't read this thread from the beginning, but if you are using TG, probably you are using SA = 0.3.10, which means you don't have generative select() constructs... So you'll need to modify your code to (not tested): s2=sqlalchemy.select([User.c.YEAR], group_by=[User.c.YEAR]) s3=s2.execute() That has worked. Thanks. Lucas --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: sqlalchemy with turbogears and assign_mapper: group_by
Hi, And if I wanted to select a year and group by year? select User.Year from User group by User.Year db.execute(select([User.Year]) ??? Have a look at http://www.sqlalchemy.org/docs/04/sqlexpression.html Ok. Based on documentation. I do: import sqlalchemy s2=sqlalchemy.select([User.c.YEAR]) s3=s2.execute() Got all year fields. 1995,1995,1995,1996,1996.. Now I want to group so I get just one. s2=sqlalchemy.select([User.c.YEAR]).group_by(User.c.YEAR) But when I execute, I get: s3=s2.execute() Traceback (most recent call last): File console, line 1, in ? AttributeError: 'NoneType' object has no attribute 'execute' In docs they use conn.execute(s2) Is this a different execute that is being called from somewhere else? I didn't read this thread from the beginning, but if you are using TG, probably you are using SA = 0.3.10, which means you don't have generative select() constructs... So you'll need to modify your code to (not tested): s2=sqlalchemy.select([User.c.YEAR], group_by=[User.c.YEAR]) s3=s2.execute() That has worked. How do I add the where statement to it? s2=sqlalchemy.select([Userl.c.CITY], group_by=[User.c.CITY], User.c.YEAR=='1980') SyntaxError: non-keyword arg after keyword arg Lucas --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: sqlalchemy with turbogears and assign_mapper: group_by
On 9/11/07, Lukasz Szybalski [EMAIL PROTECTED] wrote: Hi, And if I wanted to select a year and group by year? select User.Year from User group by User.Year db.execute(select([User.Year]) ??? Have a look at http://www.sqlalchemy.org/docs/04/sqlexpression.html Ok. Based on documentation. I do: import sqlalchemy s2=sqlalchemy.select([User.c.YEAR]) s3=s2.execute() Got all year fields. 1995,1995,1995,1996,1996.. Now I want to group so I get just one. s2=sqlalchemy.select([User.c.YEAR]).group_by(User.c.YEAR) But when I execute, I get: s3=s2.execute() Traceback (most recent call last): File console, line 1, in ? AttributeError: 'NoneType' object has no attribute 'execute' In docs they use conn.execute(s2) Is this a different execute that is being called from somewhere else? I didn't read this thread from the beginning, but if you are using TG, probably you are using SA = 0.3.10, which means you don't have generative select() constructs... So you'll need to modify your code to (not tested): s2=sqlalchemy.select([User.c.YEAR], group_by=[User.c.YEAR]) s3=s2.execute() That has worked. How do I add the where statement to it? s2=sqlalchemy.select([Userl.c.CITY], group_by=[User.c.CITY], User.c.YEAR=='1980') SyntaxError: non-keyword arg after keyword arg Sorry for so many email. Reverse order did just fine. s2=sqlalchemy.select([Userl.c.CITY],User.c.YEAR=='1980', group_by=[User.c.CITY]) Thanks http://lucasmanual.com/mywiki/TurboGears#head-efa212e209e018777039812dbfc86006f6330677 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: sqlalchemy with turbogears and assign_mapper: group_by
On 9/8/07, Lukasz Szybalski [EMAIL PROTECTED] wrote: On 9/7/07, Paul Johnston [EMAIL PROTECTED] wrote: Hi, And if I wanted to select a year and group by year? select User.Year from User group by User.Year db.execute(select([User.Year]) ??? Have a look at http://www.sqlalchemy.org/docs/04/sqlexpression.html Ok. Based on documentation. I do: import sqlalchemy s2=sqlalchemy.select([User.c.YEAR]) s3=s2.execute() Got all year fields. 1995,1995,1995,1996,1996.. Now I want to group so I get just one. s2=sqlalchemy.select([User.c.YEAR]).group_by(User.c.YEAR) But when I execute, I get: s3=s2.execute() Traceback (most recent call last): File console, line 1, in ? AttributeError: 'NoneType' object has no attribute 'execute' In docs they use conn.execute(s2) Is this a different execute that is being called from somewhere else? I didn't read this thread from the beginning, but if you are using TG, probably you are using SA = 0.3.10, which means you don't have generative select() constructs... So you'll need to modify your code to (not tested): s2=sqlalchemy.select([User.c.YEAR], group_by=[User.c.YEAR]) s3=s2.execute() Cheers, Roger --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
